SDBS的表面张力对天然气水合物生成的影响

Effect of surface tension of SDBS on natural gas hydrate formation

利用德国KRUSS公司生产的界面张力仪K11中的板法测定十二烷基苯磺酸钠在不同温度(5,10,20,30,35℃)和不同浓度下(100,400,800,1200,1600,2000 mg/L)的表面张力,确定有利于天然气水合物合成的最佳浓度为1 200 mg/L,这在工业应用中有着重要的参考价值,同时分析了表面活性剂加速天然气水合物生成的机理。

The surface tension of sodium dodecyl benzene sulfonate in the condition of different temperature （5,10,20,30,35℃） and different concentration（ 100,400,800, 1 200, 1 600,2 000 mg/L） is measured in the way of plate method through the tensionmeter K11 which is produced by the KRUSS company in Germany, the most suitable concentration （ 1 200 mg/L） for the synthesis of natural gas hydrate is confirmed, which has important reference value in the industry application. The mechanism of the surfactant speeding up natural gas hydrate formation is analysed at the same time.